<A target="_blank" href="http://www.browniesblog.com/A55CBC/blog.nsf/dx/14102009081358PMMBRCUA.htm">Michael Brown found a nice feature</A> in Domino Designer 8.5.1, error trapping. When you code something, you can save it, even if it has errors, and DDE is kind enough to give you hints on where to find them.